main.cpp Example File | Qt Charts 5.12.11

- Qt 5.12
- Qt Charts
- Temperature Records Example
- main.cpp Example File
- Qt Charts | Commercial or GPLv3

# main.cpp Example File

temperaturerecords/main.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2016 The Qt Company Ltd.
     ** Contact: https://www.qt.io/licensing/
     **
     ** This file is part of the Qt Charts module of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:GPL$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
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     #include <QtWidgets/QApplication>
     #include <QtWidgets/QMainWindow>
     #include <QtCharts/QChartView>
     #include <QtCharts/QBarSeries>
     #include <QtCharts/QBarSet>
     #include <QtCharts/QLegend>
     #include <QtCharts/QBarCategoryAxis>
     #include <QtCharts/QStackedBarSeries>
     #include <QtCharts/QValueAxis>

     QT_CHARTS_USE_NAMESPACE

     int main(int argc, char *argv[])
     {
         QApplication a(argc, argv);

         QBarSet *low = new QBarSet("Min");
         QBarSet *high = new QBarSet("Max");

         *low << -52 << -50 << -45.3 << -37.0 << -25.6 << -8.0
              << -6.0 << -11.8 << -19.7 << -32.8 << -43.0 << -48.0;
         *high << 11.9 << 12.8 << 18.5 << 26.5 << 32.0 << 34.8
               << 38.2 << 34.8 << 29.8 << 20.4 << 15.1 << 11.8;

         QStackedBarSeries *series = new QStackedBarSeries();
         series->append(low);
         series->append(high);

         QChart *chart = new QChart();
         chart->addSeries(series);
         chart->setTitle("Temperature records in celcius");
         chart->setAnimationOptions(QChart::SeriesAnimations);

         QStringList categories = {
             "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
         };

         QBarCategoryAxis *axisX = new QBarCategoryAxis();
         axisX->append(categories);
         axisX->setTitleText("Month");
         chart->addAxis(axisX, Qt::AlignBottom);
         QValueAxis *axisY = new QValueAxis();
         axisY->setRange(-52, 52);
         axisY->setTitleText("Temperature [&deg;C]");
         chart->addAxis(axisY, Qt::AlignLeft);
         series->attachAxis(axisX);
         series->attachAxis(axisY);

         chart->legend()->setVisible(true);
         chart->legend()->setAlignment(Qt::AlignBottom);

         QChartView *chartView = new QChartView(chart);
         chartView->setRenderHint(QPainter::Antialiasing);

         QMainWindow window;
         window.setCentralWidget(chartView);
         window.resize(600, 300);
         window.show();

         return a.exec();
     }